A Number for the Seller
A easy Data Modeling mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- Data Modeling
- Difficulty
- easy
- Seniority
- L3
Interview Prompt
We run an online marketplace where sellers list products, and each product records the date its listing went live and whether that listing is still active, since a seller may delist or relist over time. Every sale is logged line by line with the units sold and the revenue earned. Build the analytics schema behind a daily seller dashboard that shows, for each seller, how many of their listings are currently active and, for each date, the revenue and units their sales earned.
Summary
They want a total. Give them the right schema first.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write your data modeling solution with real code execution
- Get instant feedback and a hire/no-hire decision